Disk holder



FIG. 1 is a perspective view of a disk holder showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof; and

FIG. 7 is a perspective view of the disk holder with the cover in the open position. 

The ornamental design for a disk holder, substantially as shown and described. 